CN110985600B - Engine decoupler - Google Patents
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- CN110985600B CN110985600B CN201911258835.6A CN201911258835A CN110985600B CN 110985600 B CN110985600 B CN 110985600B CN 201911258835 A CN201911258835 A CN 201911258835A CN 110985600 B CN110985600 B CN 110985600B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
- F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
- F16F15/121—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon using springs as elastic members, e.g. metallic springs
- F16F15/124—Elastomeric springs
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Abstract
The invention provides an engine decoupler, and belongs to the technical field of engines. The engine decoupler solves the problem that an existing engine decoupler is poor in buffering effect. This engine decoupler, the engine includes belt pulley outer lane one and wheel hub, wheel hub has the installation department, this engine decoupler includes steel bushing and the rubber ring that can twist reverse deformation, the steel bushing cover is established on the installation department and steel bushing and installation department tight fit, the steel bushing is located belt pulley outer lane one, the rubber ring sets up between belt pulley outer lane one and the steel bushing, and the rubber ring all with belt pulley outer lane one and steel bushing tight fit, belt pulley outer lane one has the annular of stepping down, the lateral wall of steel bushing is the non-cylindrical wall, wheel hub's the outside has and is located the connecting portion of stepping down the annular, connecting portion are located the outside of installation department, this engine decoupler still includes the embedding and steps down the slide bearing in the annular, connecting portion are connected through slide bearing with belt pulley outer lane one. The engine decoupler improves the buffering effect.
Description
Technical Field
The invention belongs to the technical field of engines, and relates to an engine decoupler.
Background
With the continuous improvement of the living standard of people, the automobile is used more and more, but with the continuous upgrading of the emission regulations of the automobile, the hybrid power becomes the main power of the future passenger vehicle market. The BSG system is configured as hybrid P0, and has been developed and applied to engines of various platforms at present due to the characteristics of low cost, simple arrangement, less change compared with the traditional fuel engines, easy popularization and the like.
The key part influencing the running smoothness of the engine in the BSG engine gear train is a decoupler. The torsional damper of the traditional engine cannot meet the working condition requirements of starting, assisting, energy recovery and the like of the BSG engine. When the torsional damper works normally, the relative angular displacement of the inner ring and the outer ring is not more than 1 degree, and the relative angular displacement of the inner ring and the outer ring of the BSG starting engine is more than 30 degrees, so the application of the decoupler is considered in the initial stage of BSG gear train design.
There are two types of common decoupler in the engine train: one is a torsion spring structure, and the other is an arc spring structure, but the decoupler adopting the two structures has a complex structure, so that the manufacturing cost is higher, and the installation efficiency is lower.
In view of the above problems, various engine decouplers with simple structure have been developed:
for example, the chinese patent application (patent application No. 201320464441.8) discloses a crankshaft pulley assembly, which comprises a housing, a steel sleeve, an outer pulley, a buffer layer, an abrasion-resistant layer, and a rubber layer, wherein the housing is of a cylindrical structure and comprises a base portion, an annular assembly seat, and a cover plate, the steel sleeve is of a substantially tubular shell structure and is fittingly sleeved on an outer wall of the base portion of the housing, the buffer layer and the abrasion-resistant layer are both clamped between the outer pulley and a snap ring of the annular assembly seat of the housing, wherein the abrasion-resistant layer is fittingly sleeved on an outer side of the snap ring of the annular assembly seat of the housing, the buffer layer is sleeved on the abrasion-resistant layer and is in contact connection with an inner wall of the outer pulley, and the rubber layer is.
The structure of the crankshaft pulley assembly is simple, the buffer layer and the rubber layer are adopted for buffering, but the wear-resisting layer is sleeved outside the snap ring of the annular assembly seat of the shell in a matching manner, the buffer layer is sleeved on the wear-resisting layer and is in contact connection with the inner wall of the outer pulley, when the engine drives the front-end gear train (power generation and braking energy recovery), the crankshaft drives the shell and the shell to drive the steel sleeve to rotate, the rubber layer can generate torsional deformation to drive the outer pulley, when the BSG motor, namely the front-end gear train, drives the engine (start-stop or power assistance), the belt drives the outer pulley, and due to the arrangement of the wear-resisting layer and the buffer layer, the outer pulley simultaneously drives the rubber layer, the wear-resisting layer and the buffer layer to twist, so that the twisting degree of the wear-resisting layer and the buffer layer is different from that of the rubber layer, the, thereby affecting the buffering effect of the buffer layer. The manner adopted by those skilled in the art is: the mode that the cancellation passes through the buffer layer, but increases the buffering effect on rubber layer, and the rubber thickness on specific accessible promotion rubber layer, perhaps pass through outer rubber layer and outer pulley and the connected mode between rubber layer and the steel bushing for the degree of torsion on rubber layer is higher, and the setting on rubber layer is firm, and then can reach the purpose that promotes the buffering effect of engine decoupler, but above-mentioned structure can lead to the installation difficulty on rubber layer, and the higher problem of cost of manufacture on rubber layer.
The outer side wall of the steel sleeve is arranged to be arc-shaped, the thickness of the steel sleeve is increased at the moment, the connection strength of the steel sleeve and the rubber layer is increased, the distance between a hub and an outer belt wheel in an engine is within a certain range, the width range reserved for the steel sleeve and the rubber layer is also within a certain range, after the thickness of the steel sleeve is increased, the width of the rubber layer needs to be reduced within a certain range to meet the limitation of the distance between the outer belt wheel and the hub, but the width of the rubber layer is reduced, the buffering capacity of the rubber layer is reduced, and the purpose of improving the buffering effect is achieved, the technical personnel in the field can not think of the increase of the thickness of the steel sleeve and reduce the width of the rubber layer.
Disclosure of Invention
The invention aims to provide an engine decoupler aiming at the problems in the prior art, and the technical problems to be solved by the invention are as follows: how to improve the buffering effect.
The purpose of the invention can be realized by the following technical scheme:
the utility model provides an engine decoupler, engine include belt pulley outer lane one and wheel hub, wheel hub has the installation department, and this engine decoupler includes the steel bushing and can twist reverse the rubber ring of deformation, the steel bushing cover is established on the installation department and steel bushing and installation department tight fit, the steel bushing is located belt pulley outer lane one, the rubber ring sets up between belt pulley outer lane one and steel bushing, and the rubber ring all with belt pulley outer lane one and steel bushing tight fit, belt pulley outer lane one has the annular of stepping down, a serial communication port, the lateral wall of steel bushing is non-cylindrical wall, wheel hub's the outside has the connecting portion that are located the annular of stepping down, connecting portion are located the outside of installation department, and this engine decoupler still includes the embedding and steps down the slide bearing in the annular, connecting portion are connected through slide bearing with belt pulley outer lane one.
The working principle is as follows: when an engine drives the outer ring of the belt pulley, the crankshaft penetrates through the hub and drives the hub and a steel sleeve on the hub to rotate, the steel sleeve is tightly matched with the mounting part, the rubber rings are tightly matched with the first belt pulley outer ring and the steel sleeve, the rubber rings can be positively twisted under the action of the steel sleeve, the rotating force transmitted to the rubber rings by the steel sleeve is buffered, a certain twisting vibration damping effect is achieved, the rotating force is partially transmitted to the first belt pulley outer ring while the rubber rings are twisted, the first belt pulley outer ring rotates along with the crankshaft, the crankshaft can stably transmit the rotating force to the first belt pulley outer ring through the rubber rings, and the sliding bearings are only arranged to play a supporting role; when the belt drives the belt pulley outer ring to rotate, the sliding bearing is arranged to decompose the rotating force of one part of the belt pulley outer ring, and the rotating force of the other part of the belt pulley outer ring is buffered by the rubber ring, so that the rubber ring can be reversely twisted and smoothly transmitted to the steel bushing and the hub, thereby ensuring that only one buffer component of the rubber ring is used under two working conditions, avoiding the condition of uneven internal and external buffer force and damping the belt pulley outer ring and the crankshaft to a certain extent; the rubber ring can play a good role in damping vibration during torsion, so that the problems of cracking and the like of the spring shell of the existing decoupler are avoided, and the structure of the engine decoupler is simpler and the engine decoupler is convenient to assemble; the outer side wall of the steel sleeve is set to be a non-cylindrical wall, the outer side wall of the steel sleeve can be a gear wall, a wavy wall and the like, the contact surface between the steel sleeve and the rubber ring can be increased, thereby improving the stability of the connection between the steel sleeve and the rubber ring to a certain extent, when the crankshaft drives the wheel hub to rotate, the force of the steel sleeve is stably transmitted to the rubber ring, the rubber ring can not only buffer the torsional force but also play a role in vibration reduction, the sliding bearing is arranged to enable the first belt pulley outer ring and the connecting part to relatively displace, consequently when the belt pulley outer lane drives wheel hub and rotates, the belt pulley outer lane one produces relative displacement and can not transmit torsional force for wheel hub from connecting portion with connecting portion, and wheel hub only receives the torsional force that the rubber ring passes through the steel bushing transmission, and the rubber ring can be more quick emergence deformation under the effect of the rotating force this moment, and then has improved buffering effect and damping effect.
In the engine decoupler, the steel sleeve is a cylinder, the outer diameter of one end of the steel sleeve is reduced from outside to inside, the inner side wall of the rubber ring is an arc-shaped limiting wall, and the limiting wall is attached to the outer side wall of the steel sleeve.
The thickness setting of steel bushing for the rubber ring can be with the steel bushing packing tightly, and the tip of rubber ring has the packing power to the steel bushing, avoids the steel bushing axial displacement to appear when wheel hub takes place to rotate, also further improvement the joint strength of steel bushing and rubber ring, thereby promoted buffering effect.
In foretell engine decoupler, pulley outer lane one has the board of supporting, it supports to have to be curved to support on the lateral wall of rubber ring to support to lean on the wall, support to all buckle towards the direction of pulley outer lane one at the both ends of supporting the wall.
Support the setting of leaning on the wall, can make the rubber ring can be with a belt pulley outer lane packing tightly, there is the packing power in the upper end of leaning on the wall to a belt pulley outer lane, there is the packing power to the lower extreme of a belt pulley outer lane, because the setting of the structure of rubber ring, the upper end and the lower extreme that cause the rubber ring both sides all are outside extension, the strength at rubber ring middle part is less, consequently when a bent axle or a belt pulley outer lane rotate, torsional deformation takes place more easily in the middle part of the rubber ring, thereby can further promotion buffering effect and damping effect.
In the engine decoupler, one end of the abutting wall protrudes to form a reinforcing flange, and the reinforcing flange is arranged on the end face of one end of the outer ring of the belt pulley and is attached to the end face.
Strengthen turn-ups's setting, can not only promote the intensity of rubber ring, can also improve the joint strength between rubber ring and the belt pulley outer lane one, the stable transmission of the turning force that can guarantee the belt pulley outer lane one is for rubber ring or rubber ring with the stable transmission of turning force for belt pulley outer lane one, has promoted the stability of engine decoupler operation.
In foretell engine decoupler, still have the face of stepping down on the lateral wall of rubber ring, wheel hub is last to have and is conical holding surface, the face of stepping down and holding surface parallel arrangement.
The clearance between rubber ring and the wheel hub equals this moment, avoid when the bent axle rotates, the rubber ring is direct and wheel hub's the holding surface contact, influence the buffering of rubber ring, the rubber ring can reach biggest intensity and thickness, the torsional force of rubber ring is better this moment, can avoid the inclined plane contact of rubber ring and wheel hub when promoting the rubber ring torsional force as far as possible, further improvement the stability of engine decoupler operation, and also promoted the buffering effect and the damping effect of engine decoupler.
In the above-mentioned engine decoupler, the outer side wall of the rubber ring further has a plurality of protrusions which are evenly distributed along the circumferential direction of the rubber ring.
The rubber ring can be injected with glue from multiple angles in vulcanization in the production process, the uniformity of the rubber in the 360-degree direction vulcanization is guaranteed, the strength of the lower end of the rubber can be increased, and the durability of the rubber is improved.
In the engine decoupler, the thickness of the outward end of the rubber ring is greater than the thickness of the inward end of the rubber ring.
The setting of this structure for the rubber ring is when torsional deformation, and the rubber ring is the torsional deformation more easily, and the required deflection of the one end of rubber ring inwards is less, only reinforcing the rubber ring intensity and durability can, the design of rubber ring this moment can satisfy belt pulley outer lane one for the biggest relative angular displacement of wheel hub, can have better durability again.
In the engine decoupler, the first belt pulley outer ring, the rubber ring and the steel sleeve are integrally molded through glue injection and vulcanization.
The installation is carried out by adopting the mode, so that the connection strength of the first belt pulley outer ring, the rubber ring and the steel bushing is higher, the phenomenon that the rubber ring or the steel bushing is separated cannot occur in the buffering process, and the running stability of the engine decoupler is improved.
In foretell engine decoupler, first belt pulley outer lane still has connecting plate and roof, the roof is the annular, the connecting plate is connected with the outside of roof, it is connected with the inboard of roof to support the backup plate, strengthen the turn-ups and laminate mutually with the roof, the annular of stepping down is enclosed by connecting plate, support backup plate and roof and forms.
The setting of this structure for slide bearing is located the outside of cushion ring, and can play certain supporting role, and can not influence the normal operating of belt pulley outer lane one, and the rubber ring is connected with belt pulley outer lane one and slide bearing and belt pulley outer lane one before be connected and not take place to interfere, and better utilization the installation space on the belt pulley outer lane one, make setting up of whole decoupler save space more.
In the engine decoupler, the engine further comprises a second belt pulley outer ring and a rubber ring, a connecting ring is arranged at one end, away from the first belt pulley outer ring, of the hub, and the second belt pulley outer ring is connected with the connecting ring through the rubber ring.
The side of rubber circle is the wave, and belt pulley outer lane two makes the transmission of bent axle more quick and stable to the setting of belt pulley outer lane two and rubber circle does not influence other structures of engine decoupler, has guaranteed the stability of engine decoupler operation.
Compared with the prior art, the engine decoupler has the following advantages:
1. under the two kinds of states of engine, all cushion through the rubber ring, the rubber ring can not only cushion the torsional force and can also play the effect of damping to be provided with slide bearing between belt pulley outer lane one and wheel hub and support, slide bearing can not influence the torsion of rubber ring this moment, and can reduce the radial torsional force that the rubber ring bore, thereby further promotion buffering effect.
2. Through setting the rubber ring to the shape structure of similar trapezoidal, the rubber thickness of rubber ring can reach about 25mm, satisfy the biggest angle displacement requirement between belt pulley outer lane one and the wheel hub, namely can be up to the angle displacement more than 30 promptly, and the height in rubber ring cross-section is higher more, can satisfy the biggest angle displacement requirement between belt pulley outer lane one and the wheel hub more, and the minimum width design in trapezoidal cross-section can direct influence the durability of rubber ring, therefore this rubber ring can also meet the requirements when satisfying the biggest angle displacement requirement.
Drawings
FIG. 1 is a top view of the present engine decoupler after assembly.
Fig. 2 is a cross-sectional view a-a of fig. 1.
Fig. 3 is a schematic structural diagram of a rubber ring in the engine decoupler.
FIG. 4 is a schematic structural view of a steel sleeve in the engine decoupler.
FIG. 5 is a schematic diagram of the outer ring of the pulley in the present engine.
In the figure, 1, a first belt pulley outer ring; 11. a backup plate; 12. a connecting plate; 13. a top plate; 14. a abdicating ring groove; 2. a hub; 21. a connecting portion; 22. a support surface; 23. a connecting ring; 24. an installation part; 3. a rubber ring; 31. a limiting wall; 32. an abutment wall; 33. reinforcing the flanging; 34. a abdication surface; 35. a boss portion; 4. steel jacket; 5. a sliding bearing; 6. a second belt pulley outer ring; 7. a rubber ring.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
As shown in figures 1 and 2, the engine decoupler comprises a pulley outer ring I1 and a hub 2, wherein the hub 2 is provided with a mounting part 24, and the engine decoupler comprises a steel sleeve 4 and a rubber ring 3 capable of being twisted and deformed.
Specifically, as shown in fig. 1-5, the steel bushing 4 is sleeved on the mounting portion 24, the steel bushing 4 is tightly matched with the mounting portion 24, the steel bushing 4 is located in the first pulley outer ring 1, the rubber ring 3 is arranged between the first pulley outer ring 1 and the steel bushing 4, the rubber ring 3 is tightly matched with the first pulley outer ring 1 and the steel bushing 4, the first pulley outer ring 1 is provided with a yielding ring groove 14, the outer side wall of the steel bushing 4 is a non-cylindrical wall, the outer side of the hub 2 is provided with a connecting portion 21 located in the yielding ring groove 14, the connecting portion 21 is located on the outer side of the mounting portion 24, the engine decoupler further comprises a sliding bearing 5 embedded in the yielding ring groove 14, the connecting portion 21 is connected with the first pulley outer ring 1 through the sliding bearing 5, and when the first pulley outer ring 1 is started, the first pulley outer ring 3 drives the hub 2 to rotate and enables the connecting.
The working principle is as follows: when an engine drives the outer ring I1 of the belt pulley, a crankshaft penetrates through the hub 2 and drives the hub 2 and a steel sleeve 4 on the hub 2 to rotate, the steel sleeve 4 is tightly matched with the mounting part 24, the rubber ring 3 is tightly matched with the outer ring I1 of the belt pulley and the steel sleeve 4, the rubber ring 3 can be positively twisted under the action of the steel sleeve 4, the rotating force transmitted to the rubber ring 3 by the steel sleeve 4 is buffered, the rubber ring 3 also transmits part of the rotating force to the outer ring I1 of the belt pulley while being twisted, at the moment, the outer ring I1 of the belt pulley rotates along with the crankshaft, the crankshaft can stably transmit the rotating force to the outer ring I1 of the belt pulley through the rubber ring 3, and the sliding bearing 5 only plays a; when the belt drives the belt pulley outer ring I1 to rotate, the sliding bearing 5 is arranged to decompose the rotating force of one part of the belt pulley outer ring I1, and the rotating force of the other part of the belt pulley outer ring I1 is buffered by the rubber ring 3, so that the rubber ring 3 can be reversely twisted and smoothly transmitted to the steel sleeve 4 and the hub 2, and therefore, under two working conditions, only one buffer component of the rubber ring 3 is ensured, and the condition of uneven internal and external buffer forces cannot occur; the buffering effect of the engine decoupler can be realized only by arranging the rubber ring 3, the steel sleeve 4 and the sliding bearing 5, so that the engine decoupler is simpler in structure and convenient to assemble; and set up to the non-cylinder wall through the lateral wall with steel bushing 4, steel bushing 4 and rubber ring 3's area of contact has been increased, and then can promote the stability of being connected between steel bushing 4 and the rubber ring 3 to a certain extent, when the bent axle drives wheel hub 2 and rotates, steel bushing 4's the stable transmission of power is for rubber ring 3, and slide bearing 5's setting, then make between one 1 of belt pulley outer lane and the connecting portion 21 ability relative displacement, consequently when one 1 of belt pulley outer lane drives wheel hub 2 and rotates, one 1 of belt pulley outer lane produces relative displacement and can not transmit the torsional force for wheel hub 2 from connecting portion 21, wheel hub 2 only receives the torsional force that rubber ring 3 passed through steel bushing 4 and transmits, rubber ring 3 can be more quick emergence deformation under the effect of rotation power this moment, and then improved the cushion effect.
The rubber ring 3 can play a good vibration isolation effect and durability, can play a certain vibration isolation effect when buffering the torsional force, also improves the NVH of the decoupler, and avoids the problem of grease leakage caused by adopting an arc spring structure.
As shown in fig. 2-5, the steel sleeve 4 is a cylinder, the outer diameter of one end of the steel sleeve 4 decreases from outside to inside, the other end of the steel sleeve 4 is provided with a chamfer, the inner side wall of the rubber ring 3 is an arc-shaped limiting wall 31, and the limiting wall 31 is attached to the outer side wall of the steel sleeve 4.
As shown in fig. 2 to 5, the first pulley outer ring 1 has a support plate 11, the outer side wall of the rubber ring 3 has a support wall 32 in an arc shape, both ends of the support wall 32 are bent toward the first pulley outer ring 1, one end of the support wall 32 is raised to form a reinforcement flange 33, and the reinforcement flange 33 is disposed on the end surface of one end of the first pulley outer ring 1 and is attached to the end surface.
As shown in fig. 2, the outer side wall of the rubber ring 3 further has a relief surface 34, the hub 2 has a tapered support surface 22, and the relief surface 34 is parallel to the support surface 22.
As shown in fig. 3, still have a plurality of bellyings 35 on the lateral wall of rubber ring 3, a plurality of bellyings 35 are along 3 circumference evenly distributed of rubber ring, and the thickness of 3 one end outwards of rubber ring is greater than the thickness of 3 one end inwards of rubber ring, and belt pulley outer lane 1, rubber ring 3 and steel bushing 4 vulcanize integrated into one piece through the injecting glue.
As shown in fig. 2 and 5, the first pulley outer ring 1 further includes a connecting plate 12 and a top plate 13, the top plate 13 is annular, the connecting plate 12 is connected to the outer side of the top plate 13, the abutting plate 11 is connected to the inner side of the top plate 13, the reinforcing flange 33 is attached to the top plate 13, and the abdicating ring groove 14 is surrounded by the connecting plate 12, the abutting plate 11 and the top plate 13.
As shown in fig. 2, the engine further includes a second pulley outer ring 6 and a rubber ring 7, one end of the hub 2, which is far away from the first pulley outer ring 1, is provided with a connecting ring 23, and the second pulley outer ring 6 is connected with the connecting ring 23 through the rubber ring 7.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (9)
1. The utility model provides an engine decoupler, engine include belt pulley outer lane (1) and wheel hub (2), wheel hub (2) have installation department (24), and this engine decoupler includes steel bushing (4) and can twist reverse the rubber ring (3) of deformation, steel bushing (4) cover is established on installation department (24) and steel bushing (4) and installation department (24) tight fit, steel bushing (4) are located belt pulley outer lane (1), rubber ring (3) set up between belt pulley outer lane (1) and steel bushing (4), and rubber ring (3) all with belt pulley outer lane (1) and steel bushing (4) tight fit, belt pulley outer lane (1) has let a ring groove (14), its characterized in that, the lateral wall of steel bushing (4) is the non-cylindrical wall, the outside of wheel hub (2) has connecting portion (21) that are located let a ring groove (14), the engine decoupler further comprises a sliding bearing (5) embedded into the abdicating ring groove (14), and the connecting part (21) is connected with the first belt pulley outer ring (1) through the sliding bearing (5); the thickness of the outward end of the rubber ring (3) is larger than that of the inward end of the rubber ring (3).
2. The engine decoupler as claimed in claim 1, wherein the steel sleeve (4) is a cylinder, the outer diameter of one end of the steel sleeve (4) is reduced from outside to inside, the inner side wall of the rubber ring (3) is an arc-shaped limiting wall (31), and the limiting wall (31) is attached to the outer side wall of the steel sleeve (4).
3. The engine decoupler as claimed in claim 1, wherein the first pulley outer ring (1) has an abutment plate (11), the rubber ring (3) has an abutment wall (32) on its outer side wall, and both ends of the abutment wall (32) are bent toward the first pulley outer ring (1).
4. The engine decoupler as claimed in claim 3, wherein one end of the abutment wall (32) is raised to form a reinforcing flange (33), the reinforcing flange (33) being provided on and abutting against an end face of one end of the pulley outer race (1).
5. The engine decoupler as claimed in any one of claims 1-4, wherein the rubber ring (3) further comprises a relief surface (34) on the outer sidewall, the hub (2) comprises a tapered bearing surface (22), and the relief surface (34) is parallel to the bearing surface (22).
6. The engine decoupler as claimed in any one of claims 1-4, wherein the rubber ring (3) further comprises a plurality of protrusions (35) on the outer side wall, the plurality of protrusions (35) being evenly distributed circumferentially along the rubber ring (3).
7. The engine decoupler as claimed in any one of claims 1-4, wherein the first pulley outer ring (1), the rubber ring (3) and the steel sleeve (4) are integrally formed by injection vulcanization.
8. The engine decoupler as claimed in claim 4, wherein the first pulley outer ring (1) further comprises a connecting plate (12) and a top plate (13), the top plate (13) is annular, the connecting plate (12) is connected with the outer side of the top plate (13), the abutting plate (11) is connected with the inner side of the top plate (13), the reinforcing flange (33) is attached to the top plate (13), and the abdicating ring groove (14) is formed by the connecting plate (12), the abutting plate (11) and the top plate (13) in a surrounding manner.
9. The engine decoupler as claimed in any one of claims 1-4, wherein the engine further comprises a second pulley outer ring (6) and a rubber ring (7), wherein the end of the hub (2) remote from the first pulley outer ring (1) is provided with a connecting ring (23), and the second pulley outer ring (6) is connected with the connecting ring (23) through the rubber ring (7).
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| CN201911258835.6A CN110985600B (en) | 2019-12-10 | 2019-12-10 | Engine decoupler |
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| CN201911258835.6A CN110985600B (en) | 2019-12-10 | 2019-12-10 | Engine decoupler |
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| CN110985600B true CN110985600B (en) | 2021-04-16 |
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| WO2017203465A1 (en) * | 2016-05-25 | 2017-11-30 | Dayco Europe S.R.L. | Pulley-torsional damper integrated group |
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| KR101285815B1 (en) * | 2011-03-09 | 2013-07-23 | 한국후꼬꾸 주식회사 | Method of manufacturing isolation damper pulley |
| CN203362931U (en) * | 2013-05-30 | 2013-12-25 | 安徽奥丰汽车配件有限公司 | Automobile shock absorber lining |
| CN209100596U (en) * | 2018-08-17 | 2019-07-12 | 浙江义利汽车零部件有限公司 | Damper pulley and engine with it |
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|---|---|---|---|---|
| CN203560394U (en) * | 2013-08-01 | 2014-04-23 | 东风（十堰）发动机减震器有限公司 | Crankshaft pulley assembly |
| WO2017203465A1 (en) * | 2016-05-25 | 2017-11-30 | Dayco Europe S.R.L. | Pulley-torsional damper integrated group |
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| Publication number | Publication date |
|---|---|
| CN110985600A (en) | 2020-04-10 |
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